Thanks Lincoln, I did see another post as well talking about broadcast addresses on the processor subnet. I just had to deal with this using some of the USB-EXT-DM lan units. My subnet uses the standard 172.22.x.x for DHCP from the Crestron router. I used 172.22.255.255 on the UDP Communication symbol and that seemed to resolve it. The Samsung display is on the wired subnet, has a 172.22.x.x IP, so I think that was the issue.
@auslambert - I'll check out your WoL module, thanks for posting it!
Best,
David